27 lines
690 B
Ruby
27 lines
690 B
Ruby
POST_NAME = %r{^/posts/(\d{4})-(\d{2})-(\d{2})-(.*)/$}
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require 'time'
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def blog_posts_in_order
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@blog_posts_in_order ||= @items.select {|i| i.identifier =~ %r{/posts} }.sort_by {|i| i.identifier }
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end
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def previous_post(item = @item)
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current_index = blog_posts_in_order.index(item)
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if current_index && current_index > 0
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blog_posts_in_order[current_index - 1]
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end
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end
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def next_post(item = @item)
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current_index = blog_posts_in_order.index(item)
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if current_index && current_index < blog_posts_in_order.size - 1
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blog_posts_in_order[current_index + 1]
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end
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end
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def blog_date(item = @item)
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if item.identifier =~ POST_NAME
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Time.new($1.to_i, $2.to_i, $3.to_i)
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end
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end
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